Once outside, Carlos saw James Rube, 29, of Mia Drive, Gray, knocking on his ex-girlfriend’s door, asking to be let inside, police said.

Carlos began a conversation with Rube, who began walking away from his ex-girlfriend’s house toward Carlos, Duplantis said.

Carlos told detectives he felt Rube was armed, Duplantis said.

“Carlos indicated that Rube raised his hands. He told detectives that when he did that he believed he had some type of weapon. That’s under investigation at this time,” Duplantis said.

Rube was standing on the sidewalk in front of Carlos’ house when he was shot in the head with a handgun and was instantly killed, police said.

Carlos called 911 and confessed to shooting Rube, Duplantis said.

A weapon was not found in Rube’s possession at the time of his death, Duplantis said.

Detectives have spoken to Rube’s ex-girlfriend during their investigation, Duplantis said.

Carlos was arrested and charged with second-degree murder. He is being held at the parish jail on a $1 million bond. If convicted, he faces an automatic life prison sentence.

Rube had previously been convicted of the drive-by shooting of two teenage boys who were riding bikes in Houma in 2009. One of the boys, whose chest was grazed by a bullet, suffered from minor injuries from the shooting.

Staff Writer Jordan Gribble can be reached at 857-2208 or jordan.gribble@houmatoday.com. Follow him on Twitter @JGrib_Courier.

<p>A man accused of gunning down a visitor to his neighbor's home early Sunday morning told detectives he was acting in self-defense, police said.</p><p>Ray Carlos, 58, of Big Cypress Street, Houma, told police he was upset after being awakened at 3 a.m. by a man who was knocking on the door of a home across the street, police said.</p><p>“He hears the loud noises and goes outside armed,” said Houma Police Chief Todd Duplantis. </p><p>Once outside, Carlos saw James Rube, 29, of Mia Drive, Gray, knocking on his ex-girlfriend's door, asking to be let inside, police said.</p><p>Carlos began a conversation with Rube, who began walking away from his ex-girlfriend's house toward Carlos, Duplantis said.</p><p>Carlos told detectives he felt Rube was armed, Duplantis said.</p><p>“Carlos indicated that Rube raised his hands. He told detectives that when he did that he believed he had some type of weapon. That's under investigation at this time,” Duplantis said.</p><p>Rube was standing on the sidewalk in front of Carlos' house when he was shot in the head with a handgun and was instantly killed, police said.</p><p>Carlos called 911 and confessed to shooting Rube, Duplantis said.</p><p>A weapon was not found in Rube's possession at the time of his death, Duplantis said.</p><p>Detectives have spoken to Rube's ex-girlfriend during their investigation, Duplantis said.</p><p>Carlos was arrested and charged with second-degree murder. He is being held at the parish jail on a $1 million bond. If convicted, he faces an automatic life prison sentence.</p><p>Rube had previously been convicted of the drive-by shooting of two teenage boys who were riding bikes in Houma in 2009. One of the boys, whose chest was grazed by a bullet, suffered from minor injuries from the shooting.</p><p>Staff Writer Jordan Gribble can be reached at 857-2208 or jordan.gribble@houmatoday.com. Follow him on Twitter @JGrib_Courier.</p>